Great, have someone in Texas tip this to the local authorities. Tip the FBI, too. Anonymously or otherwise. Facebook will assist only for cases where the authorities or FBI get involved.

Do NOT - I repeat - DO NOT go after these people themselves. Do NOT message them or tip them off that something is wrong.

It was already a mistake for OP to have posted this here rather than give all this information straight to the authorities, because that bitch is on this site and probably in this group. She will probably be scrambling to silence all of the people listed here because of this. This could all be a wasted effort even IF this is her because everyone is a loudmouth.